Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
In Hamden, the average high-temperature in September gently drops from a hot 92.8°F (33.8°C) in August to a still tropical 86.4°F (30.2°C). September's nights in Hamden observe an average temperature of 65.5°F (18.6°C).Heat index
September's mean heat index is calculated to be a very hot 95°F (35°C). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.Note that heat index values are valued for light wind and location in the shade. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are highly important for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
In Hamden, Oklahoma, the average relative humidity in September is 69%.Rainfall
In September, the rain falls for 12.8 days. Throughout September, 2.91" (74mm) of precipitation is accumulated. In Hamden, during the entire year, the rain falls for 149.7 days and collects up to 37.6" (955mm) of precipitation.Snowfall
April through October are months without snowfall in Hamden.Daylight
In Hamden, Oklahoma, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:56 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:07 pm CDT.
Sunshine
In September, the average sunshine in Hamden is 8.9h.UV index
In September, the average daily maximum UV index in Hamden is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 6 in September translates into this advice:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Frequently asked questions
How hot is it in Hamden in September?
What is the average humidity in September in Hamden?
How many days does it rain in September in Hamden?
When it does not snow in Hamden?
How many hours of daylight does Hamden have in September?
When are sunrise and sunset in September in Hamden?
How many hours of sunshine does Hamden have in September?
How high is the UV index in September in Hamden?
Average temperature in September
Hamden, OK
- Average high temperature in September: 86.4°F
The warmest month (with the highest average high temperature) is August (92.8°F).
The month with the lowest average high temperature is January (50.5°F).
- Average low temperature in September: 65.5°F
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (34.7°F).
Average pressure in September
Hamden, OK
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Hamden, OK
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in September
Hamden, OK
- Average humidity in September: 69%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is August (66%).
Average rainfall in September
Hamden, OK
- Average rainfall in September: 2.91"
The wettest month (with the highest rainfall) is May (5.12").
The driest month (with the least rainfall) is January (1.97").
Average rainfall days in September
Hamden, OK
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (8.5 days).
Average snowfall in September
Hamden, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.98").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Hamden, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Hamden, OK
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Hamden, OK
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is January (19.9 days).
The month with the least sunshine days is May (12.9 days).
Average UV index in September
Hamden, OK
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Hamden, OK
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in September
Hamden, OK
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Hamden, Oklahoma, USA
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